Hybrid tea rose plant named ‘JACergma’

ABSTRACT

A hybrid tea rose plant having vigorous upright growth; dark green, leathery foliage; and bright red, high centered blooms that are long lasting as cut flowers.

LATIN NAME OF GENUS AND SPECIES

Rosa hybrida.

VARIETY DENOMINATION

‘JACergma’.

SUMMARY OF THE INVENTION

The present invention relates to a new and distinct variety of roseplant of the hybrid tea class which was originated by me by crossing thevariety ‘POULman’, U.S. Plant Pat. No. 6,264, with the variety ‘JACbor’.U.S. Plant Pat. No. 6,668.

BACKGROUND OF THE INVENTION

The primary objective of this breeding was to produce a new rose varietyhaving the bright red flower, fairly compact growth and dark greenleathery foliage of the female parent combined with the well formedflowers, continuous bloom and vigorous upright growth of the maleparent.

BRIEF SUMMARY OF THE INVENTION

The objective was substantially achieved, along with other desirableimprovements, as evidenced by the following unique combination ofcharacteristics that are outstanding in the new variety and thatdistinguish it from its parents, as well as from all other varieties ofwhich I am aware:

1. Bright red flowers;

2. Dark green, leathery foliage;

3. Vigorous, upright growth;

4. Long lasting cut flowers; and

5. High centered blooms.

Asexual reproduction of this new variety by budding on ‘Dr. Huey’(unpatented) understock, as performed at Wasco, Calif., shows that theforegoing and all other characteristics and distinctions come true toform and are established and transmitted through succeedingpropagations.

COMPARISON WITH PARENTS

The female parent, ‘POULman’, has larger flowers with more petals thanJACergma. The male parent, ‘JACbor’, has larger flowers of orange colorbut shorter vase life.

COMPARISON WITH SIMILAR VARIETY

‘JACergma’ differs from ‘JAColber’ in that ‘JACergma’ has a more compactplant habit, brighter red flowers on shorter stems and has greaterdisease resistance.

BRIEF DESCRIPTION OF THE ILLUSTRATION

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of my new rose cultivar withcolor descriptions using terminology in accordance with The RoyalHorticultural Society (London) Colour Chart (1966), except whereordinary dictionary significance of color is indicated.

Parentage:

Seed parent.—‘POULman’. (U.S. Plant Pat. No. 6,264).

Pollen parent.—‘JACbor’. (U.S. Plant Pat. No. 6,668).

Classification:

Botanical.—Rosa hybrida.

Commercial.—Hybrid tea.

FLOWER

Observations made from specimens beginning at two years of age grown ina garden environment at Somis, Calif. in February 1999 to November 2000.

Blooming habit: Continuous.

Bud:

Size.—1¾ inches long when the petals start to unfurl.

Form.—The bud form is long, pointed ovoid.

Color.—When sepals first divide, bud color is Red Group 45B. When halfblown, the upper sides of the petals are Red Group 45B; and the lowersides of the petals are Red Group 45A.

Sepals.—Color: Green Group 138B. Length: ⅜ inch. Width: ¼ inch-{fraction(5/16)} inch. Surface texture: Covered in fine hairs. There are threenormally to heavily appendaged sepals. There are two unappendaged sepalswith hairy edges.

Receptacle.—Color: Green Group 138A. Shape: Funnel. Size: Large, about ½inch×⅜ inch. Surface: Smooth.

Peduncle.—Length: Medium, averaging about 3 inches. Surface: Rough,prickly, and glandular. Color: Yellow-Green Group 146C to Yellow-GreenGroup 146D with Greyed-Orange Group 176B in areas exposed to brightsunlight. Strength: Stiff, erect.

Bloom:

Size.—Medium. Average open size is 4½ inches.

Borne.—Singly.

Stems.—Strength: Strong. Average length is about 14 to 16 inches.

Form.—When first open: High centered. Permanence: Retains its form tothe end, outer petals curl back with some quilling.

Petalage.—Number of petals under normal conditions: 25 to 30.

Color.—The upper sides of the petals are Red Group 45B. The reversesides of the petals are Red Group 45A. The base of each petal has asmall ({fraction (3/16)}″×{fraction (3/16)}″) Yellow-Orange Group 14Bcolor spot on the upper surface. The lower surface color spot is muchsmaller and is just a point of yellow color at the point of attachment.The major color on the upper side is Red Group 45B.

Variegations.—There are occassional White Group 155D streaks on somepetals.

Discoloration.—The general tonality at the end of the first day: Nochange. At the end of the third day: No change. No change through day 7or 8 on plant or day 9 or 10 in a vase.

Fragrance.—Slight.

Petals:

Texture.—Thick, leathery.

Shape.—Round.

Form.—Tips slightly recurved, edges slightly quilled.

Arrangement.—Imbricated. There are no petaloids in the center.

Persistence.—Petals drop off cleanly before drying.

Lastingness.—On the plant: Long (about 7-8 days). As a cut flower: Long(about 9-10 days).

Reproductive parts:

Stamens.—Number: 180-200. Anthers: Length: {fraction (5/16)} inch.Color: Yellow-Orange Group 16D. Arrangement: Regular around styles.Filaments: Color: Red Group 45D. Pollen: Color: Yellow-Orange Group 22B.

Pistils.—Number: 100-120. Styles: Color: Red Group 46A on upper ¼ to ⅓,the color shading to Yellow-Orange 20D on the lower portion. Length:{fraction (1/16)} inch. Stigmas: Color: Yellow-Orange Group 20C. Length:{fraction (1/64)} inch.

Hips.—No natural hip set has been observed.

Plant:

Form.—Bush.

Growth.—Vigorous, upright, branching. At maturity, height is 5 feet,width is 3½ feet after one full season of growth. Number of leaflets onnormal mid-stem leaves: 5 or 7.

Foliage:

Size.—Large (6 inches long×4 inches wide).

Quantity.—Abundant.

Color.—New foliage: Upper surfaces: Greyed-Orange Group 176A. Lowersurface: Greyed-Orange Group 176A. Old foliage: Upper surface: GreenGroup 139A. Lower surface: Green Group 137C.

Leaflets:

Shape.—Pointed oval. Base: Rounded. Apex: Acute.

Texture.—Leathery, glossy.

Edge.—Serrated.

Serration.—Single, small.

Petiole rachis.—Color: Green Group 137C.

Petiole underside.—Smooth with an occassional prickle.

Stipules.—Medium and serrated (about ½ inch long). Color: Green Group137C.

Disease resistance.—Resistant to mildew and rust, susceptible toblackspot under normal growing conditions.

Wood:

New wood.—Color: Near Greyed-Orange Group 176C. Bark: Smooth.

Old wood.—Color: Green Group 137C. Bark: Smooth.

Prickles:

Quantity.—On main canes from base: Ordinary. On laterals from maincanes: Ordinary.

Form.—Medium, hooked slightly downward. Length: ¼ inch.

Color when young.—Greyed-Purple Group 183B at the base, then nearYellow-Green Group 147C.

Color when mature.—Greyed-Yellow Group 162D to Greyed-Orange Group 165A.

Small prickles:

Quantity.—On main stalks: Few. On laterals: Few.

Color: Greyed-Orange Group 165A to Greyed-Yellow Group 162D (mature).

Winter hardiness: Hardy to Zone 5.

I claim:
 1. A new and distinct variety of rose plant of the hybrid teaclass plant as herein shown and described, characterized particularly asto novelty by the unique combination of its vigorous, upright growth;dark green, leathery foliage; and bright red, high centered blooms thatare long lasting as cut flowers.